Dithianone, 5,10-dihydro-5,10-dioxonaphtho[2,3-b]-1,4-dithiin-2,3-dicarbonitrile, 5,10-dioxobenzo[g][1,4]benzodithiine-2,3-dicarbonitrile, Delan-col, 5,10-dihydro-5,10-dioxonaphtho[2,3-b]-1,4-dithiine-2,3-dicarbonitrile, Delan, 5,10-Dioxo-5,10-dihydronaphtho[2,3-b][1,4]dithiine-2,3-dicarbonitrile, Delan WP, 2,3-dicyano-1,4-dithia-anthraquinone, Naphtho[2,3-b]-1,4-dithiin-2,3-dicarbonitrile, 5,10-dihydro-5,10-dioxo-, Stauffer MV-119A, DITHIANON, Thynon, Merkdelan, Caswell No. 349B